Complete the sentences with the given words in their proper forms. （每题2分，共16分）
1.He set off on a cold ____ morning.(rain)
2.I have lost my pen. May I use ____?(you)
3.Edison is one of the greatest ____ in the world.(science)
4.The weather in London is ______, you should always take an umbrella with you. (change)
5.Mary lives on the _____ floor. (twelve)
6.Household appliance make our lives both easier and _____.(enjoy)
7.The teacher found an ______ mistake on Li’s paper. (correct)
8.Shrimp is a kind of _______. (sea)